diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 153 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800usb.c | 4 |
4 files changed, 134 insertions, 30 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index cdb0133afc33..0e21aaf53bb4 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -493,7 +493,7 @@ void rt2800_write_tx_data(struct queue_entry *entry, rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->u.ht.ba_size); rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID, test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ? - txdesc->key_idx : 0xff); + txdesc->key_idx : txdesc->u.ht.wcid); rt2x00_set_field32(&word, TXWI_W1_MPDU_TOTAL_BYTE_COUNT, txdesc->length); rt2x00_set_field32(&word, TXWI_W1_PACKETID_QUEUE, entry->queue->qid); @@ -910,11 +910,51 @@ static void rt2800_init_led(struct rt2x00_dev *rt2x00dev, /* * Configuration handlers. */ -static void rt2800_config_wcid_attr(struct rt2x00_dev *rt2x00dev, - struct rt2x00lib_crypto *crypto, - struct ieee80211_key_conf *key) +static void rt2800_config_wcid(struct rt2x00_dev *rt2x00dev, + const u8 *address, + int wcid) { struct mac_wcid_entry wcid_entry; + u32 offset; + + offset = MAC_WCID_ENTRY(wcid); + + memset(&wcid_entry, 0xff, sizeof(wcid_entry)); + if (address) + memcpy(wcid_entry.mac, address, ETH_ALEN); + + rt2800_register_multiwrite(rt2x00dev, offset, + &wcid_entry, sizeof(wcid_entry)); +} + +static void rt2800_delete_wcid_attr(struct rt2x00_dev *rt2x00dev, int wcid) +{ + u32 offset; + offset = MAC_WCID_ATTR_ENTRY(wcid); + rt2800_register_write(rt2x00dev, offset, 0); +} + +static void rt2800_config_wcid_attr_bssidx(struct rt2x00_dev *rt2x00dev, + int wcid, u32 bssidx) +{ + u32 offset = MAC_WCID_ATTR_ENTRY(wcid); + u32 reg; + + /* + * The BSS Idx numbers is split in a main value of 3 bits, + * and a extended field for adding one additional bit to the value. + */ + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_BSS_IDX, (bssidx & 0x7)); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_BSS_IDX_EXT, + (bssidx & 0x8) >> 3); + rt2800_register_write(rt2x00dev, offset, reg); +} + +static void rt2800_config_wcid_attr_cipher(struct rt2x00_dev *rt2x00dev, + struct rt2x00lib_crypto *crypto, + struct ieee80211_key_conf *key) +{ struct mac_iveiv_entry iveiv_entry; u32 offset; u32 reg; @@ -934,14 +974,16 @@ static void rt2800_config_wcid_attr(struct rt2x00_dev *rt2x00dev, (crypto->cipher & 0x7)); rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_CIPHER_EXT, (crypto->cipher & 0x8) >> 3); - rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_BSS_IDX, - (crypto->bssidx & 0x7)); - rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_BSS_IDX_EXT, - (crypto->bssidx & 0x8) >> 3); rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_RX_WIUDF, crypto->cipher); rt2800_register_write(rt2x00dev, offset, reg); } else { - rt2800_register_write(rt2x00dev, offset, 0); + /* Delete the cipher without touching the bssidx */ + rt2800_register_read(rt2x00dev, offset, ®); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_KEYTAB, 0); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_CIPHER, 0); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_CIPHER_EXT, 0); + rt2x00_set_field32(®, MAC_WCID_ATTRIBUTE_RX_WIUDF, 0); + rt2800_register_write(rt2x00dev, offset, reg); } offset = MAC_IVEIV_ENTRY(key->hw_key_idx); @@ -954,14 +996,6 @@ static void rt2800_config_wcid_attr(struct rt2x00_dev *rt2x00dev, iveiv_entry.iv[3] |= key->keyidx << 6; rt2800_register_multiwrite(rt2x00dev, offset, &iveiv_entry, sizeof(iveiv_entry)); - - offset = MAC_WCID_ENTRY(key->hw_key_idx); - - memset(&wcid_entry, 0, sizeof(wcid_entry)); - if (crypto->cmd == SET_KEY) - memcpy(wcid_entry.mac, crypto->address, ETH_ALEN); - rt2800_register_multiwrite(rt2x00dev, offset, - &wcid_entry, sizeof(wcid_entry)); } int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev, @@ -1008,20 +1042,24 @@ int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev, /* * Update WCID information */ - rt2800_config_wcid_attr(rt2x00dev, crypto, key); + rt2800_config_wcid(rt2x00dev, crypto->address, key->hw_key_idx); + rt2800_config_wcid_attr_bssidx(rt2x00dev, key->hw_key_idx, + crypto->bssidx); + rt2800_config_wcid_attr_cipher(rt2x00dev, crypto, key); return 0; } EXPORT_SYMBOL_GPL(rt2800_config_shared_key); -static inline int rt2800_find_pairwise_keyslot(struct rt2x00_dev *rt2x00dev) +static inline int rt2800_find_wcid(struct rt2x00_dev *rt2x00dev) { + struct mac_wcid_entry wcid_entry; int idx; - u32 offset, reg; + u32 offset; /* - * Search for the first free pairwise key entry and return the - * corresponding index. + * Search for the first free WCID entry and return the corresponding + * index. * * Make sure the WCID starts _after_ the last possible shared key * entry (>32). @@ -1031,11 +1069,17 @@ static inline int rt2800_find_pairwise_keyslot(struct rt2x00_dev *rt2x00dev) * first 222 entries. */ for (idx = 33; idx <= 222; idx++) { - offset = MAC_WCID_ATTR_ENTRY(idx); - rt2800_register_read(rt2x00dev, offset, ®); - if (!reg) + offset = MAC_WCID_ENTRY(idx); + rt2800_register_multiread(rt2x00dev, offset, &wcid_entry, + sizeof(wcid_entry)); + if (is_broadcast_ether_addr(wcid_entry.mac)) return idx; } + + /* + * Use -1 to indicate that we don't have any more space in the WCID + * table. + */ return -1; } @@ -1045,13 +1089,15 @@ int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev, { struct hw_key_entry key_entry; u32 offset; - int idx; if (crypto->cmd == SET_KEY) { - idx = rt2800_find_pairwise_keyslot(rt2x00dev); - if (idx < 0) + /* + * Allow key configuration only for STAs that are + * known by the hw. + */ + if (crypto->wcid < 0) return -ENOSPC; - key->hw_key_idx = idx; + key->hw_key_idx = crypto->wcid; memcpy(key_entry.key, crypto->key, sizeof(key_entry.key)); @@ -1068,12 +1114,59 @@ int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev, /* * Update WCID information */ - rt2800_config_wcid_attr(rt2x00dev, crypto, key); + rt2800_config_wcid_attr_cipher(rt2x00dev, crypto, key); return 0; } EXPORT_SYMBOL_GPL(rt2800_config_pairwise_key); +int rt2800_sta_add(struct rt2x00_dev *rt2x00dev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + int wcid; + struct rt2x00_sta *sta_priv = sta_to_rt2x00_sta(sta); + + /* + * Find next free WCID. + */ + wcid = rt2800_find_wcid(rt2x00dev); + + /* + * Store selected wcid even if it is invalid so that we can + * later decide if the STA is uploaded into the hw. + */ + sta_priv->wcid = wcid; + + /* + * No space left in the device, however, we can still communicate + * with the STA -> No error. + */ + if (wcid < 0) + return 0; + + /* + * Clean up WCID attributes and write STA address to the device. + */ + rt2800_delete_wcid_attr(rt2x00dev, wcid); + rt2800_config_wcid(rt2x00dev, sta->addr, wcid); + rt2800_config_wcid_attr_bssidx(rt2x00dev, wcid, + rt2x00lib_get_bssidx(rt2x00dev, vif)); + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_sta_add); + +int rt2800_sta_remove(struct rt2x00_dev *rt2x00dev, int wcid) +{ + /* + * Remove WCID entry, no need to clean the attributes as they will + * get renewed when the WCID is reused. + */ + rt2800_config_wcid(rt2x00dev, NULL, wcid); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2800_sta_remove); + void rt2800_config_filter(struct rt2x00_dev *rt2x00dev, const unsigned int filter_flags) { diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h index bef071cd911f..7a2511f6785c 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.h +++ b/drivers/net/wireless/rt2x00/rt2800lib.h @@ -166,6 +166,9 @@ int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev, int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_crypto *crypto, struct ieee80211_key_conf *key); +int rt2800_sta_add(struct rt2x00_dev *rt2x00dev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta); +int rt2800_sta_remove(struct rt2x00_dev *rt2x00dev, int wcid); void rt2800_config_filter(struct rt2x00_dev *rt2x00dev, const unsigned int filter_flags); void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf, diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index a716d1dd0754..da48c8ac27bd 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -1015,6 +1015,8 @@ static const struct ieee80211_ops rt2800pci_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .get_tkip_seq = rt2800_get_tkip_seq, .set_rts_threshold = rt2800_set_rts_threshold, + .sta_add = rt2x00mac_sta_add, + .sta_remove = rt2x00mac_sta_remove, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2800_conf_tx, .get_tsf = rt2800_get_tsf, @@ -1076,6 +1078,8 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = { .config_erp = rt2800_config_erp, .config_ant = rt2800_config_ant, .config = rt2800_config, + .sta_add = rt2800_sta_add, + .sta_remove = rt2800_sta_remove, }; static const struct data_queue_desc rt2800pci_queue_rx = { diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 7917614dbd50..4b907a53f97c 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -750,6 +750,8 @@ static const struct ieee80211_ops rt2800usb_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .get_tkip_seq = rt2800_get_tkip_seq, .set_rts_threshold = rt2800_set_rts_threshold, + .sta_add = rt2x00mac_sta_add, + .sta_remove = rt2x00mac_sta_remove, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2800_conf_tx, .get_tsf = rt2800_get_tsf, @@ -807,6 +809,8 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = { .config_erp = rt2800_config_erp, .config_ant = rt2800_config_ant, .config = rt2800_config, + .sta_add = rt2800_sta_add, + .sta_remove = rt2800_sta_remove, }; static const struct data_queue_desc rt2800usb_queue_rx = { |